diff --git a/README.md b/README.md
index c990e1c..55ceeef 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ docker-compose run web rails db:migrate
 
 ## Installing in Canvas
 
-1. Create a developer key in Canvas. The "Vendor code" should be set to `Instructure.com`
+1. Create a developer key in Canvas. The "Vendor code" should be set to `Instructure.com`. The "Redirect URIs" can be set to any valid URI, this property not used in the context of the plagiarism platform. The key should be unscoped.
 2. Create a .env file in the lti_originality_report_example project with the following lines:
 
 ```
diff --git a/script/developer-setup.sh b/script/developer-setup.sh
old mode 100644
new mode 100755
index ce2d6f2..ca79876
--- a/script/developer-setup.sh
+++ b/script/developer-setup.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+touch .env
+
 # Sets up the project for development using Docker and docker-compose.
 
 # Use the example override file.